1. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology; Sichuan University; Chengdu China
2. National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology; Sichuan University; Chengdu China
3. Department of Oral and Maxillofacial Surgery, West China School of Stomatology; Sichuan University; Chengdu China
4. Department of Oral and Maxillofacial Surgery, School of stomatology; Central South University; Changsha China
5. Department of Pedodontics, West China School of Stomatology; Sichuan University; Chengdu China